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Discovering Thiamine Transporters as Targets of Chloroquine Using a Novel Functional Genomics Strategy


Chloroquine (CQ) and other quinoline-containing antimalarials are important drugs with many therapeutic benefits as well as adverse effects. However, the molecular targets underlying most such effects are largely unknown. By taking a novel functional genomics strategy, which employs a unique combination of genome-wide drug-gene synthetic lethality (DGSL), gene-gene synthetic lethality (GGSL), and dosage suppression (DS) screens in the model organism Saccharomyces cerevisiae and is thus termed SL/DS for simplicity, we found that CQ inhibits the thiamine transporters Thi7, Nrt1, and Thi72 in yeast. We first discovered a thi3Δ mutant as hypersensitive to CQ using a genome-wide DGSL analysis. Using genome-wide GGSL and DS screens, we then found that a thi7Δ mutation confers severe growth defect in the thi3Δ mutant and that THI7 overexpression suppresses CQ-hypersensitivity of this mutant. We subsequently showed that CQ inhibits the functions of Thi7 and its homologues Nrt1 and Thi72. In particular, the transporter activity of wild-type Thi7 but not a CQ-resistant mutant (Thi7T287N) was completely inhibited by the drug. Similar effects were also observed with other quinoline-containing antimalarials. In addition, CQ completely inhibited a human thiamine transporter (SLC19A3) expressed in yeast and significantly inhibited thiamine uptake in cultured human cell lines. Therefore, inhibition of thiamine uptake is a conserved mechanism of action of CQ. This study also demonstrated SL/DS as a uniquely effective methodology for discovering drug targets.


Vyšlo v časopise: Discovering Thiamine Transporters as Targets of Chloroquine Using a Novel Functional Genomics Strategy. PLoS Genet 8(11): e32767. doi:10.1371/journal.pgen.1003083
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.pgen.1003083

Souhrn

Chloroquine (CQ) and other quinoline-containing antimalarials are important drugs with many therapeutic benefits as well as adverse effects. However, the molecular targets underlying most such effects are largely unknown. By taking a novel functional genomics strategy, which employs a unique combination of genome-wide drug-gene synthetic lethality (DGSL), gene-gene synthetic lethality (GGSL), and dosage suppression (DS) screens in the model organism Saccharomyces cerevisiae and is thus termed SL/DS for simplicity, we found that CQ inhibits the thiamine transporters Thi7, Nrt1, and Thi72 in yeast. We first discovered a thi3Δ mutant as hypersensitive to CQ using a genome-wide DGSL analysis. Using genome-wide GGSL and DS screens, we then found that a thi7Δ mutation confers severe growth defect in the thi3Δ mutant and that THI7 overexpression suppresses CQ-hypersensitivity of this mutant. We subsequently showed that CQ inhibits the functions of Thi7 and its homologues Nrt1 and Thi72. In particular, the transporter activity of wild-type Thi7 but not a CQ-resistant mutant (Thi7T287N) was completely inhibited by the drug. Similar effects were also observed with other quinoline-containing antimalarials. In addition, CQ completely inhibited a human thiamine transporter (SLC19A3) expressed in yeast and significantly inhibited thiamine uptake in cultured human cell lines. Therefore, inhibition of thiamine uptake is a conserved mechanism of action of CQ. This study also demonstrated SL/DS as a uniquely effective methodology for discovering drug targets.


Zdroje

1. Ben-ZviI, KivityS, LangevitzP, ShoenfeldY (2012) Hydroxychloroquine: from malaria to autoimmunity. Clin Rev Allergy Immunol 42: 145–153.

2. RolainJM, ColsonP, RaoultD (2007) Recycling of chloroquine and its hydroxyl analogue to face bacterial, fungal and viral infections in the 21st century. Int J Antimicrob Agents 30: 297–308.

3. SolomonVR, LeeH (2009) Chloroquine and its analogs: a new promise of an old drug for effective and safe cancer therapies. Eur J Pharmacol 625: 220–233.

4. TehraniR, OstrowskiRA, HarimanR, JayWM (2008) Ocular toxicity of hydroxychloroquine. Semin Ophthalmol 23: 201–209.

5. Costedoat-ChalumeauN, HulotJS, AmouraZ, DelcourtA, MaisonobeT, et al. (2007) Cardiomyopathy related to antimalarial therapy with illustrative case report. Cardiology 107: 73–80.

6. KwonJB, KleinerA, IshidaK, GodownJ, CiafaloniE, et al. (2010) Hydroxychloroquine-induced myopathy. J Clin Rheumatol 16: 28–31.

7. HughesTR (2002) Yeast and drug discovery. Funct Integr Genomics 2: 199–211.

8. JochumA, JacksonD, SchwarzH, PipkornR, Singer-KrugerB (2002) Yeast Ysl2p, homologous to Sec7 domain guanine nucleotide exchange factors, functions in endocytosis and maintenance of vacuole integrity and interacts with the Arf-Like small GTPase Arl1p. Mol Cell Biol 22: 4914–4928.

9. FouryF (1990) The 31-kDa polypeptide is an essential subunit of the vacuolar ATPase in Saccharomyces cerevisiae. J Biol Chem 265: 18554–18560.

10. AskwithC, EideD, Van HoA, BernardPS, LiL, et al. (1994) The FET3 gene of S. cerevisiae encodes a multicopper oxidase required for ferrous iron uptake. Cell 76: 403–410.

11. NishimuraH, KawasakiY, KanekoY, NosakaK, IwashimaA (1992) A positive regulatory gene, THI3, is required for thiamine metabolism in Saccharomyces cerevisiae. J Bacteriol 174: 4701–4706.

12. SingletonCK (1997) Identification and characterization of the thiamine transporter gene of Saccharomyces cerevisiae. Gene 199: 111–121.

13. MojzitaD, HohmannS (2006) Pdc2 coordinates expression of the THI regulon in the yeast Saccharomyces cerevisiae. Mol Genet Genomics 276: 147–161.

14. EudyJD, SpiegelsteinO, BarberRC, WlodarczykBJ, TalbotJ, et al. (2000) Identification and characterization of the human and mouse SLC19A3 gene: a novel member of the reduced folate family of micronutrient transporter genes. Mol Genet Metab 71: 581–590.

15. RajgopalA, EdmondnsonA, GoldmanID, ZhaoR (2001) SLC19A3 encodes a second thiamine transporter ThTr2. Biochim Biophys Acta 1537: 175–178.

16. GiaeverG, ShoemakerDD, JonesTW, LiangH, WinzelerEA, et al. (1999) Genomic profiling of drug sensitivities via induced haploinsufficiency. Nat Genet 21: 278–283.

17. HuaZ, FatheddinP, GrahamTR (2002) An essential subfamily of Drs2p-related P-type ATPases is required for protein trafficking between Golgi complex and endosomal/vacuolar system. Mol Biol Cell 13: 3162–3177.

18. PrezantTR, ChaltrawWEJr, Fischel-GhodsianN (1996) Identification of an overexpressed yeast gene which prevents aminoglycoside toxicity. Microbiology 142(Pt 12): 3407–3414.

19. HomewoodCA, WarhurstDC, PetersW, BaggaleyVC (1972) Lysosomes, pH and the anti-malarial action of chloroquine. Nature 235: 50–52.

20. EmersonLR, NauME, MartinRK, KyleDE, VaheyM, et al. (2002) Relationship between chloroquine toxicity and iron acquisition in Saccharomyces cerevisiae. Antimicrob Agents Chemother 46: 787–796.

21. BelenkyPA, MogaTG, BrennerC (2008) Saccharomyces cerevisiae YOR071C encodes the high affinity nicotinamide riboside transporter Nrt1. J Biol Chem 283: 8075–8079.

22. BieganowskiP, BrennerC (2004) Discoveries of nicotinamide riboside as a nutrient and conserved NRK genes establish a Preiss-Handler independent route to NAD+ in fungi and humans. Cell 117: 495–502.

23. VoglC, KleinCM, BatkeAF, SchweingruberME, StolzJ (2008) Characterization of Thi9, a novel thiamine (Vitamin B1) transporter from Schizosaccharomyces pombe. J Biol Chem 283: 7379–7389.

24. WeyandS, ShimamuraT, YajimaS, SuzukiS, MirzaO, et al. (2008) Structure and molecular mechanism of a nucleobase-cation-symport-1 family transporter. Science 322: 709–713.

25. TallaksenCM, BohmerT, BellH, KarlsenJ (1991) Concomitant determination of thiamin and its phosphate esters in human blood and serum by high-performance liquid chromatography. J Chromatogr 564: 127–136.

26. BettendorffL, GrandfilsC, De RyckerC, SchoffenielsE (1986) Determination of thiamine and its phosphate esters in human blood serum at femtomole levels. J Chromatogr 382: 297–302.

27. WeberW, KewitzH (1985) Determination of thiamine in human plasma and its pharmacokinetics. Eur J Clin Pharmacol 28: 213–219.

28. KobakS, DeveciH (2010) Retinopathy due to antimalarial drugs in patients with connective tissue diseases: are they so innocent? A single center retrospective study. Int J Rheum Dis 13: e11–15.

29. OkunE, GourasP, BernsteinH, SallmannLV (1963) Chloroquine Retinopathy. A report of eight cases with ERG and dark adaptation. Arch Ophthalmol 69: 93–105.

30. ThornalleyPJ (2005) The potential role of thiamine (vitamin B1) in diabetic complications. Curr Diabetes Rev 1: 287–298.

31. HammesHP, DuX, EdelsteinD, TaguchiT, MatsumuraT, et al. (2003) Benfotiamine blocks three major pathways of hyperglycemic damage and prevents experimental diabetic retinopathy. Nat Med 9: 294–299.

32. Tanphaichitr V (1994) Thiamin. Modern Nutrition in Health and Disease, 8th ed Philadelphia: Lea and Febiger: 359–375.

33. Victor MG, Adams RD, Collins GH (1989) The Wernicke-Korsakoff Syndrome and Related Neurological Disorders Due to Alcoholism and Malnutrition. 2nd Edition Philadelphia: FA Davis Co.

34. RineJ, HansenW, HardemanE, DavisRW (1983) Targeted selection of recombinant clones through gene dosage effects. Proc Natl Acad Sci U S A 80: 6750–6754.

35. ButcherRA, BhullarBS, PerlsteinEO, MarsischkyG, LaBaerJ, et al. (2006) Microarray-based method for monitoring yeast overexpression strains reveals small-molecule targets in TOR pathway. Nat Chem Biol 2: 103–109.

36. AlbertTJ, DailidieneD, DailideG, NortonJE, KaliaA, et al. (2005) Mutation discovery in bacterial genomes: metronidazole resistance in Helicobacter pylori. Nat Methods 2: 951–953.

37. HoCH, MagtanongL, BarkerSL, GreshamD, NishimuraS, et al. (2009) A molecular barcoded yeast ORF library enables mode-of-action analysis of bioactive compounds. Nat Biotechnol 27: 369–377.

38. ParsonsAB, BrostRL, DingH, LiZ, ZhangC, et al. (2004) Integration of chemical-genetic and genetic interaction data links bioactive compounds to cellular target pathways. Nat Biotechnol 22: 62–69.

39. KieferJ, YinHH, QueQQ, MoussesS (2009) High-throughput siRNA screening as a method of perturbation of biological systems and identification of targeted pathways coupled with compound screening. Methods Mol Biol 563: 275–287.

40. LinYY, KiihlS, SuhailY, LiuSY, ChouYH, et al. (2012) Functional dissection of lysine deacetylases reveals that HDAC1 and p300 regulate AMPK. Nature 482: 251–255.

41. LiuG, Wong-StaalF, LiQ (2006) Recent development of RNAi in drug target discovery and validation. Drug Discov Today Technol 293–300.

42. LueschH, WuTY, RenP, GrayNS, SchultzPG, et al. (2005) A genome-wide overexpression screen in yeast for small-molecule target identification. Chem Biol 12: 55–63.

43. BrachmannCB, DaviesA, CostGJ, CaputoE, LiJ, et al. (1998) Designer deletion strains derived from Saccharomyces cerevisiae S288C: a useful set of strains and plasmids for PCR-mediated gene disruption and other applications. Yeast 14: 115–132.

44. PanX, YeP, YuanDS, WangX, BaderJS, et al. (2006) A DNA integrity network in the yeast Saccharomyces cerevisiae. Cell 124: 1069–1081.

45. GietzRD, SuginoA (1988) New yeast-Escherichia coli shuttle vectors constructed with in vitro mutagenized yeast genes lacking six-base pair restriction sites. Gene 74: 527–534.

46. HuangZ, ChenK, XuT, ZhangJ, LiY, et al. (2011) Sampangine inhibits heme biosynthesis in both yeast and human. Eukaryot Cell 10: 1536–1544.

47. PanX, ReissmanS, DouglasNR, HuangZ, YuanDS, et al. (2010) Trivalent arsenic inhibits the functions of chaperonin complex. Genetics 186: 725–734.

48. PanX, YuanDS, OoiSL, WangX, Sookhai-MahadeoS, et al. (2007) dSLAM analysis of genome-wide genetic interactions in Saccharomyces cerevisiae. Methods 41: 206–221.

49. PanX, YuanDS, XiangD, WangX, Sookhai-MahadeoS, et al. (2004) A robust toolkit for functional profiling of the yeast genome. Mol Cell 16: 487–496.

50. JonesGM, StalkerJ, HumphrayS, WestA, CoxT, et al. (2008) A systematic library for comprehensive overexpression screens in Saccharomyces cerevisiae. Nat Methods 5: 239–241.

51. SaidHM, OrtizA, KumarCK, ChatterjeeN, DudejaPK, et al. (1999) Transport of thiamine in human intestine: mechanism and regulation in intestinal epithelial cell model Caco-2. Am J Physiol 277: C645–651.

52. ZhangY (2008) I-TASSER server for protein 3D structure prediction. BMC Bioinformatics 9: 40.

53. TrottO, OlsonAJ (2010) AutoDock Vina: improving the speed and accuracy of docking with a new scoring function, efficient optimization, and multithreading. J Comput Chem 31: 455–461.

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Genetika Reprodukčná medicína

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PLOS Genetics


2012 Číslo 11
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